How much you are planning to shell out for the Windows hosting package? Do you need any specific hosting provider or any preferred server location?
Well, I think you need to get at least vps, I don't think that you will be able to use senuke with shared environment
How skilled is their staff? When you need customer service of a technical nature, you need it immediately, right? Find out the availability of their systems administrators.
You can download 5,567 custom sites to import into the software here http://www.matthewwoodward.co.uk/reviews/the-best-senuke-x-reviews-tutorials/